Sajjad, M., S. H. Khan, M. Ashfaq, and W. Nasim. “Association of Seed Morphology With Seedling Vigor in Wheat (Triticum Aestivum L)”. Research in Plant Biology, vol. 2, no. 5, Oct. 2012, https://updatepublishing.com/journal/index.php/ripb/article/view/2535.